Home / 12,858,433.60-19,259,656.80-7,800,923.20

Finding the Fourth Proportional to 12,858,433.60, 19,259,656.80 and 7,800,923.20

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Solution

The fourth proportional to 12,858,433.60, 19,259,656.80 and 7,800,923.20 is: 11,684,401.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,858,433.60 : 19,259,656.80 = 7,800,923.20 : x
  2. Step 2: Convert to fraction form
    12,858,433.60/19,259,656.80 = 7,800,923.20/x
  3. Step 3: Cross multiply
    12,858,433.60x = 19,259,656.80 × 7,800,923.20
  4. Step 4: Simplify right side
    12,858,433.60x = 150,243,103,555,157.78
  5. Step 5: Solve for x
    x = 150,243,103,555,157.78/12,858,433.60
  6. Step 6: Final answer
    x = 11,684,401.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.